|
Model PE Casing Isolators/Spacers
|
High density (linear), injection molded virgin polyethylene casing isolators/spacers provide positive insulation,
high abrasion resistance and low coefficient of friction for a wide variety of double containment carrier/casing pipe applications.
They are extremely light in weight and easy to handle during installation.
A ribbed inner surface prevents slippage and guards against carrier pipe coating damage while the outer surface may include any one
of several molded runners to accommodate 2" (50.8mm) x 4" (101.6mm) or larger carrier/casing differentials.
One piece solid molded segments provide for maximum load bearing. Hardware includes cadmium plated steel studs, nuts and washers.
A screwdriver is the only tool needed for installation. | |
Model PE Casing Isolators are designed primarily for smaller diameter steel or
polyethylene carrier pipes (ANSI O.D. pipe without a bell or mechanical joint). We do not recommend that they be used on any
carrier pipe over 24" in diameter or for installations over 300 feet long without consulting with PSI. PE Isolators should
not be used on concrete carrier pipe.
|
|
Typical Installation
Based on 20-feet (6.0-meters) carrier pipe segments in a casing of not more than 300-feet (91.5-meters) . Consult PSI
for longer casings and for concrete pipe.
Recommended Maximum Spacing
All Model PE Isolator/Spacers should not exceed 5-feet (1.5-meters) to 8-feet (2.4-meters) center-to-center. An isolator/spacer
should be placed within 2-feet (0.6-meters) on each side of a coupling or joint and within 1-foot (0.3-meters) of each end of the casing.
|
|
- 5" (127mm) wide band for maximum hoop strength around carrier pipe.
- Ribbed inner surface prevents slippage and guards against coating damage.
- Molded from virgin polyethylene material.
- Lightweight for ease of handling and installation.
- Screwdriver is only tool needed for installation.
| |
|
|
SPECIFICATION | ASTM TEST | VALUE |
Material | | Injection Molded Virgin Polyethylene |
Tensile Strength | D638, D651 | 3,100 - 5,500 psi
(218 - 387 kg/cm²) |
Compressive Strength | D693 | 3,200 psi
(225kg/cm²) |
Water Absorption | D570 | 0.1% |
Temperature | | 180° F. Max. (82° C.) |
Impact Strength | D256 | 1.5 - 2.0 ft lb/in.
(0.8 - 1.07 newton-meter/cm) |
Dielectric Strength | D149 | 450 Volts/Mil. |
Color | | Natural |
Liner
None
Runners
3/4" (19mm) through 12" (305mm) = 2-piece with molded-in runners.
14" (356mm) and larger = Multiple segments with molded-in runners.
Hardware
Metallic - Bolts and Square Nuts = Plated Steel
NOTE:
Model PE Casing Isolators are designed primarily for smaller diameter steel or
polyethylene carrier pipes (ANSI O.D. pipe without a bell or mechanical joint). We do not recommend that they be used on any
carrier pipe over 24" in diameter or for installations over 300 feet long without consulting with PSI. PE Isolators should
not be used on concrete carrier pipe.
|
|
All products are warranted against failure caused by manufacturing defects for a period of one year. Any product found to be
so defective and returned within one year from date of shipment will be replaced without charge. The above warranty is made in
lieu of, and we disclaim, any and all other warranties, | |
expressed or implied, including the warranties of merchantability and
fitness for a particular purpose, and buyer agrees to accept the products without any such warranties. We hereby disclaim any
obligation or liability for consequential damages, labor costs or any other claims or liabilities of any kind whatsoever. |
|
Casing isolators/spacers shall be PSI Model PE molded from high density polyethylene plastic in two segments for applications
on carrier pipe diameters of 12" and under. Model PE isolator/spacers will be provided in multiple segments for applications
on carrier pipe diameters of over 12".
Each spacer segment shall be a solid, non-welded molded piece designed for accommodating a specific size carrier pipe O.D.
Each casing spacer shall be manufactured at a facility that has a Registered ISO 9001:2000 Quality Management System.
A copy of the current ISO 9001:2000 registration shall be provided with material submittal.
Approved manufacturer: Pipeline Seal and Insulator, Inc.
End Seal Specification
After insertion of the carrier pipe in the casing, the
ends of the casing shall be closed by installing a PSI Model "C", Model "S" or Model "FW" casing end seal as manufactured by Pipeline Seal
and Insulator, Inc., Houston, TX.
| |
Link-Seal® End Seal Specification
(Carrier Pipe Must Be Centered Within Casing)
After insertion of the carrier pipe in the casing, the ends of the casing shall be closed by
installing the Link-Seal® end seals and a 1/8" thick synthetic rubber end seal equal to the PSI Model "C" end seal. Both as manufactured
by Pipeline Seal and Insulator, Inc., Houston, TX.
Disclaimer
The foregoing performance data is
intended as guideline material only and is based on assumptions of general and reasonable use. Performance suitability for any
specific application should be determined by the user.
Download Specification as PDF File
|
|
- End Seals
Models "C" (Pull-on), "S" (Standard Pull-on), "W" (Wrap Around) and "FR" (Fire Resistant)
- Link-Seal® Modular Seals
Link-Seal® is an excellent method for enclosing the end of a casing when the pipe is center within the casing.
- Custom Isolators
Multiple carrier spacers are used for inserting different size pipes, conduits and wires into casings.
| | |
|
An 8 page booklet that includes all PSI casing isolators/spacers (both metallic and non-metallic)
that are appropriate for use in the energy industry.
An 8 page booklet that includes all PSI casing isolators/spacers (both metallic and non-metallic)
that are appropriate for use in the water/sewer industry.